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单选题For a diesel engine, individual cylinder performance is commonly determined by exhaust gas（）A chemical analysisB back pressure readingsC pyrometer readingsD infrared analysis

题目
单选题
For a diesel engine, individual cylinder performance is commonly determined by exhaust gas（）
A

chemical analysis

B

back pressure readings

C

pyrometer readings

D

infrared analysis

相似考题

1.How does combustion air enter the cylinder of a two-cycle diesel engine ? Through _______．A.Cylinder head valvesB.PortsC.Turbo chargersD.Bleeder valves

2.单选题In a single acting, four-stroke/cycle diesel engine, the power impulse in an individual cylinder occurs （）A once every crankshaft revolutionB once every two crankshaft revolutionsC once every piston strokeD twice every piston stroke

3.单选题Which of the listed problems would be indicated by an accumulation of water in one cylinder, in addition to the crankcase of an idle diesel engine?（）A Excessive cylinder linerB water in the fuel systemC Cracked cylinder linerD Leaking lube oil cooler

4.单选题Low compression in a diesel engine can be caused by （）A clogged coolant passagesB a leaking cylinder head gasketC low fuel oil pressureD worn or broken cylinder liner sealing rings

更多“For a diesel engine, individual cylinder performance is comm”相关问题

  • 第1题：

    单选题
    Fuel oil discharged to the diesel engine cylinder is atomized at the （）
    A

    turbocharger

    B

    injection nozzle tip

    C

    carburetor

    D

    fuel oil pump


    正确答案： B
    解析： 暂无解析

  • 第2题：

    单选题
    Diesel engine exhaust gas temperatures can be used to determine individual cylinder （）.
    A

    performance

    B

    horsepower output

    C

    fuel consumption

    D

    scavenge effect


    正确答案： A
    解析： 暂无解析

  • 第3题：

    单选题
    A practical way of checking for excessive fuel injection in one cylinder of an operating diesel engine is to （）
    A

    feel the high pressure fuel line

    B

    check the cylinder exhausts for white smoke frequently

    C

    check the cylinder exhaust temperature

    D

    isolate each cylinder and inspect the injector


    正确答案： A
    解析： 暂无解析

  • 第4题：

    单选题
    Fuel is ignited in a diesel engine cylinder by （）
    A

    a spark plug

    B

    injectors

    C

    the heat of compression

    D

    increasing jacket water temperatures


    正确答案： A
    解析： 暂无解析

  • 第5题：

    单选题
    A change in the quality of fuel atomization by a diesel engine fuel injector would be caused by a/an （）
    A

    increase in engine speed

    B

    increase in cylinder turbulence

    C

    leaking needle valve

    D

    reduction in cylinder turbulence


    正确答案： C
    解析： 暂无解析

  • 第6题：

    单选题
    A diesel engine is warmed up and white vapor is in the exhaust，this could indicate （）
    A

    excessive cylinder lubrication

    B

    a lugging engine

    C

    a leaking cylinder liner

    D

    overloading of one cylinder


    正确答案： B
    解析： 暂无解析

  • 第7题：

    单选题
    If it becomes necessary to cutout an individual cylinder of a large, low-speed, main propulsion diesel engine, the fuel to that cylinder should be secured and its （）
    A

    fuel pump should be removed and all connections blanked off

    B

    cylinder oil feed rate should be increased slightly above that used at normal sea speed

    C

    cylinder oil feed rate should be reduced

    D

    cylinder oil feed rate should be increased to the maximum flow capable of the metering pump


    正确答案： B
    解析： 暂无解析

  • 第8题：

    单选题
    Engine coolant accumulating in the diesel engine lubricating oil can result from a （）
    A

    low oil pressure

    B

    high coolant pressure

    C

    leaking fuel injector

    D

    cracked cylinder head or liner


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    In a single acting, two-stroke/cycle, diesel generator engine, the power impulse in an individual cylinder occurs （）
    A

    once every crankshaft revolution

    B

    once every two crankshaft revolutions

    C

    once every piston stroke

    D

    twice every piston stoke


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    Fuel oil injected into the cylinder of a diesel engine just after the piston passes top dead center, will（）
    A

    increase engine power

    B

    increase engine load

    C

    decrease engine power

    D

    improve fuel economy


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    Diesel engine cylinder head test cocks are used to （）
    A

    check cylinder lubrication

    B

    connect the pressure indicator pressure

    C

    test cylinder heads

    D

    connect the exhaust gas pyrometers


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    Compared to a naturally aspirated diesel engine, a supercharged diesel engine has（）
    A

    a cylinder air charge of higher pressure

    B

    increased pumping losses

    C

    less valve overlap

    D

    reduced blow-by


    正确答案： C
    解析： 暂无解析

  • 第13题：

    单选题
    Air scavenging of a diesel engine cylinder（）
    A

    blows out the exhaust gases

    B

    supplies oxygen for combustion

    C

    cools the valves and cylinder walls

    D

    all of the above


    正确答案： C
    解析： 暂无解析

  • 第14题：

    单选题
    One end of a diesel engine cylinder is sealed by the cylinder head and the other end by the （）
    A

    crankcase

    B

    piston

    C

    cylinder liner

    D

    crank cheek


    正确答案： B
    解析： 暂无解析

  • 第15题：

    单选题
    Diesel engine cylinder head test cocks are used to（）
    A

    check cylinder lubrication prior to starting engine

    B

    connect exhaust gas analyzers to determine engine efficiency

    C

    pressure test cylinder heads to check for leaks

    D

    remove moisture accumulations from cylinder prior to starting


    正确答案： D
    解析： 暂无解析

  • 第16题：

    单选题
    Broken intake valve springs on one cylinder of a diesel engine can cause the engine to （）
    A

    Over speed

    B

    fire improperly

    C

    lose oil pressure

    D

    overheatrapidly


    正确答案： D
    解析： 暂无解析

  • 第17题：

    单选题
    If water is found in the crankcase of a diesel engine, the cause may be due to（）
    A

    a cracked cylinder head

    B

    a leaky cylinder head gasket

    C

    a cracked cylinder liner

    D

    any of the above


    正确答案： A
    解析： 暂无解析

  • 第18题：

    单选题
    A faulty injection in one cylinder of an operating diesel engine can be located by （）
    A

    cutting out individual injectors and noting engine performance

    B

    checking lube oil temperature

    C

    checking cam position

    D

    using a timing light


    正确答案： C
    解析： 暂无解析

  • 第19题：

    单选题
    Fuel is admitted to a diesel engine cylinder through the （）.
    A

    intake valves

    B

    carburetor

    C

    exhaust ports

    D

    injector nozzles


    正确答案： D
    解析： 暂无解析

  • 第20题：

    单选题
    What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
    A

    Spark plug

    B

    Heat of compression

    C

    Carburetor

    D

    Glow plug


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    The function of diesel engine piston compression rings is to （）.
    A

    prevent piston side thrust

    B

    prevent engine friction losses

    C

    transmit heat from the piston to the cylinder liner

    D

    remove oil from the cylinder combustion space


    正确答案： B
    解析： 暂无解析

  • 第22题：

    单选题
    A Kort nozzle is a(n)（）.
    A

    hollow tube surrounding the propeller used to improve thrust

    B

    nozzle attached to a firefighting hose

    C

    intake valve on a diesel engine

    D

    piston cylinder on a diesel engine


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    A properly honed diesel engine cylinder liner will（）
    A

    prevent piston ring wear

    B

    shorten the ring break-in period

    C

    prevent cylinder liner glazing

    D

    appear slick and glazed


    正确答案： B
    解析： 暂无解析

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